CVS Meds Specificity Flashcards
Characteristic + Elimination
Dobutamine Dynamic; Elim; Specifics, Indicate
Dynamic: B1 adrenergic
Elim: Hepatic + Renal
Indicate: Acute CHF 2/2 MI and Septic Induced Cardial Dysfxn.
Specific: Decreases SVR, BP effect is dependent on Preload + Inotropy
Less tachyarrhymia vs dopamine
Tolerance in 3 days
Do not Mix with NaHCO3 or in pt with AFIB
Dopamine Dynamic; Elim; Specifics, Indicate
Dynamic: Dopaimine; B: 3-10 mcg/kg/min; A+B: 10+
Elim: MAO/COMT (monoamine oxidase/ Catechol-o-methyltransferase)
Indicate: Hypotension, acute CHF
Specific: Contra in Pheo or V-Fib, relative in PVD
Increases renal blood flow in low dose [does not prevent renal dysfxn or death]
Ephedrine Dynamic; Elim; Specifics
Dynamic: NE release at sympathic nerve ending -> A+B
BP inc by CO + SVR;
Elim: Renal (unchanged)
Specific:
CNS stimulation; Dec uterine activity and mild bronchodilation
Only with pts with normal catecholamine stores
Ineffective to MAOI takers Less effective with repetative doses (NE depletion)
Isoproterenol: Dynamic; Elim; Specifics, Indicates
Dynamic: Nonselective B Agon, potent chronictrop+ionotrop. More systemic vasodilate.
Elim: Hepatic + Pulm via MAO/COMT; 40-50% Renal excrete
Indicates: AV blocks +/- ventricular arrhythmia; Shock, Bronchospasm during anes; CHF + BradyC
Specific:
Increases Myocardial O2 Demand,
Can trigger asthma attack (B2)
Avoid in Digitalis; TachyA; MAOI/TCA
Phenylephrine Dynamic; Elim; Specifics
Dynamic: Alpha 1 Receptor only,
Elim: Hepatic and intestinal wall metabolism; Renal Elimination
Specifics:
Useful also in Tetraology of Fallot Spells
Effective in Neuroaxial block; Outflow tract obstruction in HOCM
Causes Reflex Bradycardia, Microcirculation constriction
Uterine Contraction +/- Vasoconstriction
Decreases CO in CAD pts.
Caution in pts taking MAOI or TCA or Closed-angel glaucoma
Levophed Dynamic; Elim; Specifics
Dynamic: Precusor of EPI; Potent Alpha Adrenergic, modest B-adrenergic; Alpha potency Inc with doses >4-5 mcg/min; Positive Iontropy with min-chronotropy
Elim: MAO/COMT metabolism
Useful in septic shock. but not useful in MI relatred shock
Specific: May cause Uterine contraction Inc,
Constricts micorcirculations, possibly splanic ciruclation
Cardiotoxic in prolong doses and use with care in MAOI pts
Vasopressin Dynamic; Elim; Specifics
Indications: DIabetic INsipidus, Abdominal distention
Postcardiotomy and vasodilatory shock (second line); Pulseless Vtach/Fib
Dynamic: V1 Receptor smooth muscle constriction, vasoconstrict of splanichnic, coronary, muscular and cutaneous
V2: Increase Urine osmolarity, Decrease Urine Output
Elim: Hepatic + renal Metabolism with Renal Elimination
Specific:
Potential Intestinal/Skin Ischemia,
Water intoxication, Pulm Edema,
Abdominal Cramps, Gallbladder Contrction;
Possible Anaphylaxsis
Amrinone Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Mirnone: Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Phenoxybenazmine Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Phentolamine Onset; Duration, Dose
Dynamic:
Elim:
Specific
Labetalol Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Metoprolol Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Esmolol Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Propanolol Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Clonidine Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Methyldopa Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Diltazem Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Verapamil Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Nicardipine Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Clevidipine Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Fenoldopam Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Hydralazine Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Isosorbide Dinitrate Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Nitroglycerin Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Nitroprusside Sodium Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Adenosine Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Amiodarone Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Lidocaine Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Procainamide Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Digioxin Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
Nesiritide Dynamic; Elim; Specifics
Dynamic:
Elim:
Specific
phenoxybenzamine leading to paradoxical inc BP and HR (why)
due to alpha2 blockade, leading to inc NE release
Diuretic Effect on CHF
Dilating Venous Capacitance -> Dec MAP + LV end diastolic vol -> Increased contractility, decrease myocardial wall stress,
MOA of digioxin and what can potentiate this effect
Na/K atpase inhibitor -> decrease ca removal via na/ca -> ca sequestered into SR by ca atpase. Anything that leads to hypokalemia will potentiate this effect.
Levosimedan MOA and benefits
Calcium Sensitzer of cardaic myocyte by binding to troponin c, and improves cardiac contractility without inc in itnracellular calcium. ALong with vasodilatory (opening atp-k channel in vascular smooth muscle) inc contraction while dec afterload and preload
tolvaptan
vasopressin receptor antagonist for SIADH
Theophyilline AE
SZ and arrhymogenic,
Effect of LA systemic tox on heart
blockade of intracellular site of NA channel. leading to prolong PR and widening of qrs. and impair recovery of sodium channels during hyperpolarization
Dobutamine Use
cardiogenic shock with maintaining BP as it improves cardiac output and reduces afterload with minimal increase in myocardial oxygen demand.
Lasix AE
Low K, Cl, H,
Acetazolamide, MOA AE
inhib carbonic anhydrase; can lead to mild hyperchloremic MAcidosis
Mirinone MOA AE,
Phosdiesterase 3-I (cAMP only -> inotropy with Lusitropy) Benefit: Inc Cardiac Index without Inc O2 Demand. Synergenistic with adrenergic but cannot be inhbited by blockers. Reduces Systemic+pulm vasc resistance+ AE: Renal Excreted, TachyC, Hypotension, high dose -> Afib.
Nicardipine Cardiovascular effects and Pulm; Contra
Vasodilation (CCB); Promote sympathetic response ( chronotropic+ionotropic); Inc FEV1, FVC ; Contra: Prolong 1/2 life in Liver Dz pt. May cause Direct Cerebral Vasodilation without inc ICP or major CBF
Fenoldopam MOA and Special
Dopamine-1 Agonist only; increases renal flow while being anti htn.
Esmolol Degradation and Selectivity
B1 Selective; metabolized by RBC esterases
ATenolol metabolism
Renally cleared (ATN)